60 minus 20
6 minus 2 is 4
so
60 minus 20 is 40
therefore your answer is 40
Answer:

Step-by-step explanation:
From similar triangles, see diagram in attachment

We solve for
to obtain,

The formula for calculating the volume of a cone is

We substitute the value of
to obtain,

This implies that,

We now differentiate both sides with respect to
to get,

We were given that water is drained out of the tank at a rate of 
This implies that
.
Since we want to determine the rate at which the depth of the water is changing at the instance when the water in the tank is 8cm deep, it means
.
We substitute this values to obtain,




The answer is 0. Hope it helps!
Answer:
First one: Degree of 13, type monomial
Second one: Degree of 5, type trinomial
Third one: Degree of 8, type trinomial
Step-by-step explanation:
The degree of a polynomial is determined by the highest degree of its individual terms. To determine the degree of a term, add up the power values of the variables.
The type of the polynomial is determined by how many terms are being separated by an addition sign ( a subtraction sign is just the addition of the inverse of a number).
One term: Monomial
Two terms: Binomial
Three terms: Trinomial
Four terms and so on: Generally just called polynomials